National Highway G65Shuijiang To Wulong Baima Interchange Landslide Stability Analysis

The Western development of roads link provinces channels Wulong to Shuijiang in Chongqing to changsha highway is asegment of National Trunk Highway G65.(BaoMao high-speed)Is an important part of national highway main frame, the main highway transportation systems of Chongqing opening up and connect South China.It across the southeast of chongqing area and county the five counties (Wulong,Pengshui,Qianjiang, Youyang,Xiushan).Once opened to traffic,will bring the gospel to the largest minority areas of Chongqing.Bai-Ma interworking is a important channel of the road to Wulong industrial park.The similar problem of Bai-Ma interworking is widespread in Chongqing southeast mountain area,research work of cause and stability evaluation of the of Bai-Ma interworking landslide.Study control respectively landslides of the road is being built in Chongqing mountain area,and have important practical significance protection in similar landslide.The paper based on the field research, exploration and data collection,firstiy analysis of the geological background of Bai-Ma interworking landslide. and analysis of genetic mechanism of landslide, Evaluation of the stability and development trend.On this basis, proposed a comprehensive program proposal. The main results include:(1) For the study of topography and landform character, composition and distortion-failure character in landslide, Baima Interchange landslide by old landslide、No.1and No.2landslide formed, is a large landslide, traction。(2)For the analysis of genetic mechanism of landslide, No.1and No.2is due to landslide Landslide G65excavation and continuous heavy rain, the old landslide shallow soil occurred and the formation of the secondary landslide resurrection. (3) For the Evaluation of the stability and development trend.On, Elder landslide is stable overall but Lower in its security reserve.No.1landslide in a strong deformation stage, will accelerated.No.2landslide in a week deformation stage. Once instability,and sliped, Will threaten Subgrade,barricade,ramp and bridge of Bai-Ma interworking.(4) According to its residual downslide force and deformation characteristic, put forward proposals for prevention and control have suggest:Generally due to the thicker and larger elder landslide,it really a good recommendation to use anti-slide pile in order to make better fixed. In the meanwhile, the No.1landslides and No.2landslides have Small volume and thickness, so recommended to use the methods of cut the landslide slope for reducing its weight and slope protection. Ultimately achieve the comprehensive treatment effect of landslide area. Fill loading in middle part of landslide and cut the landslide slope for reducing its weight in the back of landslide, slope protection and slit water, drainage measures.Suggestions about that is to Landslide control as soon as possible and establish drainage measures. In the early stage of the whole engineering.